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With the rapid development of modern technology, a large tube section as a major national construction projects and major technical equipment of the important parts, increasing demand for large-scale and tends. Bulky pieces of tube section, the surface condition is poor, small and medium sized machine tool cutting parameters several times or even ten times; cutting temperature up to 1000 ℃ or more, serious damage bonding tool, processing efficiency is very low, seriously affecting the economic and social benefits. How to achieve economic and efficient machining has been a large tube section processing industry continue to study and explore the subject. Application of computer technology development of metal cutting database can provide fast and efficient cutting cutting parameters is reasonably necessary to improve the quality of mechanical products processing and production efficiency, and enhance the competitiveness of enterprises. This paper mainly from the following aspects to do the research and analysis: for large parts machining cylindrical section characteristics, creating large pieces of heavy cutting tube section parameter optimization system database, using Visual C 6.0 and SQL Server2000 as a programming tool, the use of object-oriented program design method to achieve the tool, machine tool, workpiece cutting parameters such as query and manage information in real time. Cutting Database data provided mostly by experience or check made to use existing manuals, data is only feasible, it is difficult to ensure that the best data, so processing for large tube section, the mere establishment of cutting the database system is not enough. In view of this situation, this paper build large pieces of heavy tube section cutting parameters optimization system knowledge base, including the case library, preferably parameter library, factual knowledge base, rule base, etc., to provide a basis for optimal cutting parameters. And research and analysis of a knowledge-based interactive grid optimization algorithm, the realization of machine tools, cutting tools, cutting three elements of optimization options. It also stores the cutting process to collect relevant images, multimedia, video and corresponding references and other information, so that data in the database is more comprehensive and rich. Finally create large pieces of heavy tube section cutting parameters preferred database system model, and a detailed analysis of the various functional modules studied, and the implementation process and results, in order to meet the actual machining processing requirements to provide optimum cutting parameters, specific guidance processing process, and to a certain extent, improve the enterprise's standardized production management level.
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